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| author | Dan Gohman <gohman@apple.com> | 2009-01-07 01:00:24 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-01-07 01:00:24 +0000 |
| commit | 0a3c522dbc05ad2ba89df4d3977278caa816576e (patch) | |
| tree | e54ed359a20e1bbbc597708133f381856d67c23d /test | |
| parent | ac441ab261c774b41889aae14ab8de3f12431bca (diff) | |
| download | external_llvm-0a3c522dbc05ad2ba89df4d3977278caa816576e.zip external_llvm-0a3c522dbc05ad2ba89df4d3977278caa816576e.tar.gz external_llvm-0a3c522dbc05ad2ba89df4d3977278caa816576e.tar.bz2 | |
Add patterns to match conditional moves with loads folded
into their left operand, rather than their right. Do this
by commuting the operands and inverting the condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61842 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/commute-cmov.ll | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/X86/commute-cmov.ll b/test/CodeGen/X86/commute-cmov.ll new file mode 100644 index 0000000..24398dc --- /dev/null +++ b/test/CodeGen/X86/commute-cmov.ll @@ -0,0 +1,10 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep {cmove 16(%esp)} + +define i32 @bar(i32 %x, i32 %n, i32 %w, i32 %v) nounwind readnone { +entry: + %0 = lshr i32 %x, %n ; <i32> [#uses=1] + %1 = and i32 %0, 1 ; <i32> [#uses=1] + %toBool = icmp eq i32 %1, 0 ; <i1> [#uses=1] + %.0 = select i1 %toBool, i32 12, i32 %v ; <i32> [#uses=1] + ret i32 %.0 +} |